It has been understood after designing this example that it seems better to transfer the movement from the V-belt pulleys sectors to the gear teeth than transferring it from the gear teeth to the V-belt pulleys sectors. The torque is now transferred directly more directly from the primary shaft to the V-belt pulleys sectors to the gear teeth through a free wheel.
In other words, it has been understood that the arms (shown in light yellow in this video) were not compulsory.